+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   2423 Ibarruri (1972 NC) Classification: Mars-crossing Asteroid          SPK-ID: 2002423 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO47590 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2831757 n/a   a 2.1888696 n/a AU q 1.5690349 n/a AU i 4.05513 n/a deg node 265.20539 n/a deg peri 80.19890 n/a deg M 183.30119 n/a deg tp 2455781.0763983 (2011-Aug-07.57639831) n/a JED period 1182.8461289 3.24 n/a n/a d yr n 0.30435066 n/a deg/d Q 2.8087043 n/a AU   Orbit Determination Parameters    # obs. used (total)      270      first obs. used      1956-??-??      last obs. used      2003-05-22      # oppositions      12      planetary ephem.      DE403      quality code      1      fit RMS      0.65      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.618  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.2 mag n/a PDS3 (MPC 17265)   SMASSII spectral type spec_B A   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 2423 Ibarruri (1972 NC)           Discovered 1972-Jul-14 by Zhuravleva, L. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1972 NC = 1930 SV = 1943 TB = 1956 VC = 1972 PB  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2010-Feb-10 06:20 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin